18 Definition(s) from various sources:

Brahmā as the Creator God is always shown with four heads which represent the four volumes of the Sacred Scriptures — the Vedas by the power of which Brahmā effects the work of creation. In Hindu mythology Creation occurs by Brahmā projecting created beings from his own mind into the four directions.

In terms of consciousness and states of mind, Brahmā represents the waking state of externalised awareness (jāgrat) — awareness and interaction with the world around us. Science deals almost exclusively with Brahmā.

Brahmā (ब्रह्मा, “Creator”):—One of the male offspring from Mahālakṣmī (rajas-form of Mahādevī). Also known as Vidhi. Mahālakṣmī is one of the three primary forms of Devī, the other two being Mahākālī and Mahāsarasvatī. Not to be confused with Lakṣmī, she is a more powerful cosmic aspect (vyaṣṭi) of Devi and represents the guṇa (universal energy) named rajas. Also see the Devī Māhātmya, a Sanskrit work from the 5th century, incorporated into the Mārkaṇḍeya-Purāṇa.

Brahma is past middle age now. That means Brahma had been around at least 155 trillion years. In Brahma's life, there are two halves: In the beginning of the first half, the kalpa was called Brahma-kalpa in the first millennium where the Lord and the Vedas appeared. The next kalpa was called Padma-kalpa because the lotus flower grew out of the navel reservoir of water of Bhagavan Vishnu. The first millennium of the second half is known as Varaha-kalpa, because the Lord incarnated as a hog. He (Brahma) is now in the second half of his life. The duration of the two halves of life of Brahma is less than one nimesa (less than one second) for the beginningless Lord, Maha Visnu, the Soul of the Universe. Remember: Brahma lives for 311.04 trillion years.

When Brahma goes to sleep in the (Brahma's) night, all planetary systems below his abode, Brahmaloka, are inundated with water. He dreams about Maha Vishnu who gives him instructions to rejuvenate the universe again.

When Brahma goes to sleep, for the duration of one Kalpa (one night of Brahma, 432 million years) Vishnu goes to sleep with his abdomen full of Jivas, released souls, Brahma, the inmates of hell, the fallen souls, the people caught up in Samsara, and the animals.

It is worthwhile to remember that the laws of karma become operative with the onset of new kalpa; in kalpal dissolution, karma, vasanas and samskaras of an individual are in suspended animation, waiting to express themselves once the subtle body acquires kosas or a body.

When Brahma’s life comes to an end (a full life of 100 Brahma years), the Lord of Lords absorbs all elements and a new Brahma is created at the Lord’s will.

Every soul takes a birth in a body from inorganic entities to the highest earthly human being 8,400,000 times. One, then, would consider that human body is the most difficult to come by.

Post-Vedic personal Creator god of the Hindu trinity (with Vishnu and Shiva). Usually represented as red in color and holding a goblet, a bow, a scepter, and the Vedas. Unlike Vishnu and Shiva, Brahma is seldom worshipped today.

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Brahmā (ब्रह्‍मा): Creator of the universe, The Hindu creator god, and one of the Trimurti, the others being Vishnu and Shiva. He must not be confused with the Supreme Cosmic Spirit of Hindu philosophy Brahman.

Brahma is the the creator part of the supreme trinity of hinduism - Shiva, Vishnu, Brahma. He is normally not worshipped alone, but as part of the Dhattatreya, which is all the three aspects in one form.

He is said to have been born out of a lotus that grew out of the navel of Vishnu. He was given the four Vedas by Vishnu and bidden to commence the aspect of creation. To assist in this task, he created the Prajapatis, who are his ManasaPutras (wish-born-sons). They are namely: Daksha, Vasishta, Kashyapa, Bhrigu, Angirasa.

Originally he had five heads. Once when he got into an argument with Shiva as to who is more powerful, Shiva cut one of his heads off, leaving only Shiva with five heads.

According to the Satapatha Brahmana, the names of the mind-born sons of Brahma are

N (Noble practice, noble conduct) Being dwelling in the world bearing the same name and which is the loftiest worlds plane among the four worlds planes. The world of brahmas is divided up between twenty spheres of existence.

A brahma being devoid of tactile sense, he cannot develop any akusala. Thats why their sphere of existence is called "the world of the ones having a noble conduct". There are three kinds of brahmas.

A Brahma in Buddhism is the name for a type of exalted passionless deity (deva), of which there are multiple in Buddhist cosmology.

The Brahma devas (or simply Brahmas) participate in the more active joys of the first dhyana. They are also more interested in and involved with the world below than any of the higher devas, and sometimes intervene with advice and counsel.

There are at least four ways of interpreting the term Brahma. It may refer to:

Any of the deities of the Arupyadhatu or of the Rupadhatu

Any of the deities of the nine lowest worlds of the Rupadhatu, from Subhakrtsna to Brahmaparisadya.